Funnyman Paul Rudd turns up in a comically large costume in this latest adventure with Elmo. The furry little guy is gung-ho about saving the environment by recycling, re-using, and conserving resources. But even he didn't expect to literally 'go green' when Abby, excited by the situation, turns him the colour of Oscar the Grouch--and can't remember how to change him back to his normal (and preferred) hue of fire-engine red.